Swiss gold with sapphire and diamonds lady’s pendant watch Circa 1903

Gold open faced brooch watch 
–
A very fine and rare Swiss, 18 Carat gold, enamel, sapphire and diamond-set keyless lady’s pendant watch. circa 1903. With detachable matching pendant and brooch fitting by Shreve & Co. San Francisco. Accompanied by the Extract from the Archives. The back cover is cast in relief with art nouveau foliage highlighted with frosted graduated blue enamel, set with three round diamonds and a pear  shaped sapphire, the interior of the back with engraved dedication, the bezel and band decorated to match, brooch fitting set with a single diamond and fan-shaped sapphire.
–
Hinged gold cuvette with engraved monogram. White enamel dial with radial blue Arabic numerals, outer blue minute track and gold painted Arabic five minute numerals. Gold Louis XV hands. A rhodium-plated movement, Geneva striping decoration, 17 jewels, wolf’s tooth winding, moustache lever escapement, cut bimetallic compensation balance, blued steel flat balance spring, index regulator. Dial, case and movement signed.
–
Diameter: 27 mm
–
Signed: Patek Philippe & Cie  Geneve
–
The movement of the present watch was very likely replaced during servicing, several years after its sale.